Systems and methods for determining measurement characteristics of an object with a time displacement sensor

Patent metadata

Field	Value
Publication number	US-11061047-B2
Application number	US-201916367451-A
Country	US
Kind code	B2
Filing date	Mar 28, 2019
Priority date	Mar 28, 2019
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

A sensor for measuring displacement and time comprises a hollow body including a longitudinal axis. The hollow body comprises a wall including an inner surface and an outer surface, and a pathway defined by the inner surface. The sensor further comprises a solid body including an outer surface, the solid body configured to be received by the hollow body and travel through the pathway. The sensor further comprises a plurality of frangible wires, where each wire of the plurality of wires extends through a first opening in the wall, across the pathway, and through a second opening in the wall, and each wire is spaced apart by a distance in a direction generally parallel to the longitudinal axis of the hollow body.

First claim

What is claimed is:

1. A sensor for measuring displacement and time, the sensor comprising:
a hollow body including a longitudinal axis, the hollow body comprising:
a wall including an inner surface and an outer surface; and
a pathway defined by the inner surface;

a solid body including an outer surface, the solid body configured to be received by the hollow body and travel through the pathway; and
a plurality of frangible wires, each wire of the plurality of wires extending through a first opening in the wall, across the pathway, and through a second opening in the wall, wherein each wire is spaced apart by a distance in a direction generally parallel to the longitudinal axis of the hollow body.

2. The sensor of claim 1 , wherein the solid body includes a longitudinal axis, and wherein when the solid body travels through the pathway, the longitudinal axis of the solid body is substantially aligned with the longitudinal axis of the hollow body.

3. The sensor of claim 1 , wherein the outer surface of the solid body defines a diameter of the solid body, and wherein the inner surface of the hollow body defines a diameter of the pathway.

4. The sensor of claim 3 , wherein the diameter of the solid body is less than the diameter of the pathway.

5. The sensor of claim 1 , wherein the first and second openings in the wall extend between the outer surface of the hollow body and the inner surface of the hollow body.

6. The sensor of claim 1 , wherein the solid body is configured to break at least one wire of the plurality of wires as the solid body travels through the pathway of the hollow body.

7. A system for measuring displacement and time, the system comprising:
the sensor of claim 1 ; and
a data acquisition system in communication with the plurality of wires of the sensor of claim 1 , the data acquisition system comprising a processor configured to detect a first time when a first wire of the plurality of wires is broken by the solid body.

8. The system of claim 7 , wherein the processor of the data acquisition system is further configured to determine a displacement of the solid body of the sensor by:
detecting a second time when a second wire of the plurality of wires is broken by the solid body; and
determining a distance between the first wire and the second wire.

9. The system of claim 8 , wherein the processor of the data acquisition system is further configured to determine a displacement time between the first time and the second time.

10. A system for measuring displacement and time, the system comprising:
a sensor including:
a hollow body including a longitudinal axis, the hollow body comprising:
a wall including an inner surface and an outer surface; and
a pathway defined by the inner surface;

a solid body configured to be received by the hollow body and travel through the pathway; and
a plurality of frangible wires, each wire of the plurality of wires extending across the pathway, wherein each wire is spaced apart by a distance in a direction generally parallel to the longitudinal axis of the hollow body; and

a data acquisition system in communication with the plurality of wires of the sensor, the data acquisition system comprising a processor configured to:
detect a first time when a first wire of the plurality of wires is broken by the solid body as the solid body travels through the pathway; and
detect a second time when a second wire of the plurality of wires is broken by the solid body as the solid body travels through the pathway.

11. The system of claim 10 , wherein the processor of the data acquisition system is further configured to:
determine a displacement time between the first time and the second time.

12. The system of claim 11 , wherein the processor of the data acquisition system is further configured to:
detect a first location where the first wire of the plurality of wires is broken by the solid body;
detect a second location where the second wire of the plurality of wires is broken by the solid body; and
determine a displacement of the solid body by computing a displacement distance between the first location and the second location.

13. The system of claim 12 , wherein the processor of the data acquisition system is further configured to:
determine a velocity of the solid body based on the displacement time and the displacement distance.

14. The system of claim 10 , wherein the system further comprises:
an output device in communication with the data acquisition system.

15. The system of claim 14 , wherein the processor of the data acquisition system is further configured to:
determine a displacement time between the first time and the second time;
determine a first location where the first wire of the plurality of wires is broken by the solid body;
determine a second location where the second wire of the plurality of wires is broken by the solid body; and
determine a displacement of the solid body by computing a displacement distance between the first location and the second location.

16. The system of claim 15 , wherein the output device includes a display screen, and wherein the processor of the data acquisition system is further configured to:
output the determined displacement time and displacement distance to the display screen of the output device.

17. A method for measuring displacement and time, the method comprising:
receiving, within a pathway of a hollow body of a sensor, a solid body of the sensor;
breaking, by the solid body, a frangible wire of a plurality of frangible wires as the solid body travels through the pathway;
detecting, by a data acquisition system, a first time when the wire is broken by the solid body; and
determining, by the data acquisition system, a first location of the wire along the hollow body.

18. The method of claim 17 , further comprising:
detecting, by the data acquisition system, a second time when a second wire of the plurality of wires is broken by the solid body; and
determining, by the data acquisition system, a second location of the second wire along the hollow body.

19. The method of claim 18 , further comprising:
determining a displacement time between the first time and the second time; and
determining a displacement of the solid body by computing a displacement distance between the first location and the second location.

20. The method of claim 17 , wherein breaking the wire as the solid body travels through the pathway includes breaking a circuit completed by the wire.

Assignees

• Toyota Eng & Mfg North America

Inventors

• Watson Skylar C
• Gordon Scott M
• Pawson Zachary T

Classifications

• G01P3/66 Primary

  using electric or magnetic means (G01P3/80 takes precedence; measuring short time intervals G04F8/00, G04F10/00) · CPC title